The Koch ST20/H is a Koch amplifier, currently around $1000.55. Close alternatives include the Koch Classictone II 20 Combo and the Blackstar HT Stage 60 112 MkII. It pairs well with the Colorsound Overdriver and the Friedman BE-OD.
Koch ST20/H
Koch · amplifier
The Koch ST20/H is a 20-watt head from the Dutch boutique maker, known for building amplifiers with switchable power stages allowing different tube configurations from a single chassis. The ST designation places it within Koch's catalogue separately from the Classictone line. Independent coverage of this specific model outside Europe is limited, so this description does not assert its channel count, voicing or tube complement beyond what the model name establishes.
- modern
- crunch
- di
- boutique
- musical
- recording
- stage
- chimey
Good for
- Live
- Studio
- Silent Recording
Price updated Aug 27, 2026
Genres the Koch ST20/H is commonly used in
- Alternative Rock
- Rock
cited
Inferred from shared tonal signals, not a stated genre tag.
Pedals that stack with the Koch ST20/H
Colorsound Overdriver
pedal
23% matchColorsound Overdriver takes that crunchy character and pushes it toward clean boost
Friedman BE-OD
Friedman
22% matchKoch ST20/H leans into a clean amp's front end, precisely the platform Friedman BE-OD wants
Carl Martin PlexiTone
Carl Martin
22% matchStack Carl Martin PlexiTone on top and a crunchy tone tightens toward clean boost
One Control Persian Green Screamer
One Control
11% matchKeep Koch ST20/H's crunchy voice out front: One Control Persian Green Screamer goes after Koch ST20/H in the signal chain so its mid-forward voice doesn't muddy it
Pigtronix Philosopher's Tone Micro
Pigtronix
9% matchPigtronix Philosopher's Tone Micro leans toward sustaining, and that's a real, usable character to pair with
MXR Analog Delay
MXR
6% matchKeep Koch ST20/H's crunchy voice out front: MXR Analog Delay goes in Koch ST20/H's effects loop so its ambient voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)
Wampler Catacombs
Wampler
6% matchRun Wampler Catacombs in Koch ST20/H's effects loop, clear of Koch ST20/H's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Laney TI-Boost
Laney
tonal matchInto Koch ST20/H, Laney TI-Boost is right at home: it's built around a clean amp's front end
Cheaper alternatives
Boutique & premium upgrades
Similar charactersee all similar tone character →
Koch Classictone II 20 Combo
Koch
100% similaritysimilar tone character
Blackstar HT Stage 60 112 MkII
Blackstar
93% similaritysimilar tone character
Fuchs ODS Classic 25/50 Combo
Fuchs
92% similaritysimilar tone character
Marshall Bluesbreaker
Marshall
92% similaritysimilar tone character
Blackstar HT Stage 60 MKII
Blackstar
92% similaritysimilar tone character
Marshall DSL15H 2-Channel 15-Watt
Marshall
92% similaritysimilar tone character
See all alternatives to the Koch ST20/H (cheaper + boutique) →
Questions people ask
What are good alternatives to the Koch ST20/H?+
The closest matches in character are the Koch Classictone II 20 Combo, the Blackstar HT Stage 60 112 MkII, the Fuchs ODS Classic 25/50 Combo. Budget picks: Blackstar HT Club 40, Blackstar Stage 602 MKII, Blackstar TV-10. Boutique upgrades: Victory VC35, Morgan Dual 20, Milkman Sound HT15 15W 1x12 Combo.
What pairs well with the Koch ST20/H?+
Strong matches from rig and tone-complementarity evidence: Colorsound Overdriver, Friedman BE-OD, Carl Martin PlexiTone — Colorsound Overdriver takes that crunchy character and pushes it toward clean boost.
How much does the Koch ST20/H cost?+
Around $1000.55 (live listing price, updated Aug 27, 2026).